Place the kohlrabi in a roasting tin with the olive oil and honey, season with sea salt and black pepper and toss all the ingredients together.
Cook in the preheated oven for 10 – 15 minutes, then add the walnuts and cook for a further 5 minutes. Meanwhile core and slice the apple, squeeze over a little lemon juice to prevent browning, and set aside. Wash the rocket and drain well.

For the dressing, combine all the ingredients in a bowl and whisk together well. Pile the rocket, apple, kohlrabi and walnuts on 4 plates and drizzle with the dressing. Delicious served with pan fried chicken breast, or on its own as a starter.